§ Mr. Eldon Griffiths
asked the Secretary of State for Social Services (1) what is the latest information his Department has on the efficacy or otherwise of the intra-uterine device as a contraceptive;
(2) what is the latest information which his Department has on the efficacy or otherwise of the combined pill as a contraceptive.
§ Dr. Vaughan
Information on the efficacy of the combined oral contraceptive pill and intra-uterine device was published in 1979 in the Department's "Handbook of Contraceptive Practice".
Pregnancies per 100 women-years Combined oral contraceptive pill 0.1–0.4 Intra-uterine device 1.5–3.0